System.register([], function () {
	'use strict';
	return {
		execute: function () {

			for ( let i = 0; i < 10; i += 1 ) console.log( i );
			for ( const letter of array ) console.log( letter );
			for ( const index in array ) console.log( index );

			let i;
			for ( i = 0; i < 10; i += 1 ) console.log( i );

			let letter;
			for ( letter of array ) console.log( letter );

			let index;
			for ( index in array ) console.log( index );

		}
	};
});
